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    <title>Document</title>
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<body>
    <script>
        var str = '        asd    fgh    hjk     '
       
        console.log(str.trim(''))
    </script>

    <script>
        //var str = trimStr("        asd    fgh    hjk     ");
        //function trimStr(str){
        //    return str.replace(/(^\s*)|(\s*$)/g,"");
        //}
    </script>
</body>
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